package com.jade.common.utils.file;

//import com.aspose.cells.*;
//import com.aspose.pdf.Document;
//import com.aspose.pdf.devices.JpegDevice;
//import com.aspose.pdf.devices.Resolution;
//import com.aspose.words.ImageSaveOptions;
//import com.aspose.words.SaveFormat;
//import com.aspose.words.TiffCompression;
import com.jade.common.config.Global;
import com.jade.common.exception.file.FileNameLengthLimitExceededException;
import com.jade.common.exception.file.FileSizeLimitExceededException;
import com.jade.common.exception.file.InvalidExtensionException;
import com.jade.common.utils.DateUtils;
import com.jade.common.utils.StringUtils;
import com.jade.common.utils.security.Md5Utils;
import org.apache.commons.io.FilenameUtils;
import org.springframework.util.ResourceUtils;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.util.UUID;

/**
 * 文件上传工具类
 * 
 * @author jade
 */
public class CompanyUploadUtil
{
    /**
     * 默认大小 50M
     */
    public static final long DEFAULT_MAX_SIZE = 50 * 1024 * 1024;

    /**
     * 默认的文件名最大长度 100
     */
    public static final int DEFAULT_FILE_NAME_LENGTH = 100;
    
    public static final String[] DEFAULT_ALLOWED_EXTENSION = {
        // 图片
        "jpg", "jpeg", "png",
        // word 
        "doc", "docx",
        // pdf
        "pdf" ,
        //excel
        "xls" ,"xlsx"};

    /**
     * 默认上传的地址
     */
    private static String defaultBaseDir = Global.getProfile();

    private static int counter = 0;

    public static void setDefaultBaseDir(String defaultBaseDir)
    {
        CompanyUploadUtil.defaultBaseDir = defaultBaseDir;
    }

    public static String getDefaultBaseDir()
    {
        return defaultBaseDir;
    }

    /**
     * 以默认配置进行文件上传
     *
     * @param file 上传的文件
     * @return 文件名称
     * @throws Exception
     */
    public static final String upload(MultipartFile file) throws IOException
    {
        try
        {
            return upload(getDefaultBaseDir(), file, DEFAULT_ALLOWED_EXTENSION);
        }
        catch (Exception e)
        {
            throw new IOException(e.getMessage(), e);
        }
    }

    /**
     * 根据文件路径上传
     *
     * @param baseDir 相对应用的基目录
     * @param file 上传的文件
     * @return 文件名称
     * @throws IOException
     */
    public static final String upload(String baseDir, MultipartFile file) throws IOException
    {
        try
        {
            return upload(baseDir, file, DEFAULT_ALLOWED_EXTENSION);
        }
        catch (Exception e)
        {
            throw new IOException(e.getMessage(), e);
        }
    }

    /**
     * 文件上传
     *
     * @param baseDir 相对应用的基目录
     * @param file 上传的文件
     * @param extension 上传文件类型
     * @return 返回上传成功的文件名
     * @throws FileSizeLimitExceededException 如果超出最大大小
     * @throws FileNameLengthLimitExceededException 文件名太长
     * @throws IOException 比如读写文件出错时
     * @throws InvalidExtensionException 文件校验异常
     */
    public static final String upload(String baseDir, MultipartFile file, String[] allowedExtension)
            throws FileSizeLimitExceededException, IOException, FileNameLengthLimitExceededException,
            InvalidExtensionException
    {
        int fileNamelength = file.getOriginalFilename().length();
        if (fileNamelength > CompanyUploadUtil.DEFAULT_FILE_NAME_LENGTH)
        {
            throw new FileNameLengthLimitExceededException(CompanyUploadUtil.DEFAULT_FILE_NAME_LENGTH);
        }

        assertAllowed(file, allowedExtension);

        String fileName = extractFilename(file);

        File desc = getAbsoluteFile(baseDir, fileName);
        file.transferTo(desc);
        String pathFileName = getPathFileName(baseDir, fileName);
        return pathFileName;
    }

    /**
     * 编码文件名
     */
    public static final String extractFilename(MultipartFile file)
    {
        String fileName = file.getOriginalFilename();
        String extension = getExtension(file);
        fileName = DateUtils.dateTime() + "/"+ UUID.randomUUID().toString().replace("-", "") +"/" + encodingFilename(fileName) + "." + extension;
        return fileName;
    }

    private static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException
    {
        File desc = new File(uploadDir + File.separator + fileName);

        if (!desc.getParentFile().exists())
        {
            desc.getParentFile().mkdirs();
        }
        if (!desc.exists())
        {
            desc.createNewFile();
        }
        return desc;
    }

    private static final String getPathFileName(String uploadDir, String fileName) throws IOException
    {
        int dirLastIndex = uploadDir.lastIndexOf("/") + 1;
        String currentDir = StringUtils.substring(uploadDir, dirLastIndex);
        String pathFileName = "/profile/" + currentDir + "/" + fileName;
        return pathFileName;
    }

    /**
     * 编码文件名
     */
    private static final String encodingFilename(String fileName)
    {
        fileName = fileName.replace("_", " ");
        fileName = Md5Utils.hash(fileName + System.nanoTime() + counter++);
        return fileName;
    }

    /**
     * 文件大小校验
     *
     * @param file 上传的文件
     * @return
     * @throws FileSizeLimitExceededException 如果超出最大大小
     * @throws InvalidExtensionException
     */
    public static final void assertAllowed(MultipartFile file, String[] allowedExtension)
            throws FileSizeLimitExceededException, InvalidExtensionException
    {
        long size = file.getSize();
        if (DEFAULT_MAX_SIZE != -1 && size > DEFAULT_MAX_SIZE)
        {
            throw new FileSizeLimitExceededException(DEFAULT_MAX_SIZE / 1024 / 1024);
        }

        String fileName = file.getOriginalFilename();
        String extension = getExtension(file);
        if (allowedExtension != null && !isAllowedExtension(extension, allowedExtension))
        {
            if (allowedExtension == MimeTypeUtils.IMAGE_EXTENSION)
            {
                throw new InvalidExtensionException.InvalidImageExtensionException(allowedExtension, extension,
                        fileName);
            }
            else if (allowedExtension == MimeTypeUtils.FLASH_EXTENSION)
            {
                throw new InvalidExtensionException.InvalidFlashExtensionException(allowedExtension, extension,
                        fileName);
            }
            else if (allowedExtension == MimeTypeUtils.MEDIA_EXTENSION)
            {
                throw new InvalidExtensionException.InvalidMediaExtensionException(allowedExtension, extension,
                        fileName);
            }
            else
            {
                throw new InvalidExtensionException(allowedExtension, extension, fileName);
            }
        }

    }

    /**
     * 判断MIME类型是否是允许的MIME类型
     *
     * @param extension
     * @param allowedExtension
     * @return
     */
    public static final boolean isAllowedExtension(String extension, String[] allowedExtension)
    {
        for (String str : allowedExtension)
        {
            if (str.equalsIgnoreCase(extension))
            {
                return true;
            }
        }
        return false;
    }

    /**
     * 获取文件名的后缀
     * 
     * @param file 表单文件
     * @return 后缀名
     */
    public static final String getExtension(MultipartFile file)
    {
        String extension = FilenameUtils.getExtension(file.getOriginalFilename());
        if (StringUtils.isEmpty(extension))
        {
            extension = MimeTypeUtils.getExtension(file.getContentType());
        }
        return extension;
    }

    /**
     * @throws Exception 
     * @throws IOException 
     * @throws FileNotFoundException 
     * 
    * @Title: FileToImage 
    * @Description: 将文件转为png图片
    * @author wuwei
    * @param @param imageUrl
    * @param @param file    设定文件 
    * @return void    返回类型 
    * @throws
     */
	@SuppressWarnings("deprecation")
	public static void FileToImage(String imageUrl, MultipartFile file) throws IOException, Exception {
//		String fileType = file.getContentType();
//		File path = new File(imageUrl);
//		//创建路径
//        if (!path.exists())
//        {
//        	path.mkdirs();
//        }
//		//pdf文件
//		if(fileType.contains("pdf")){
//			File fileLicense = ResourceUtils.getFile(ResourceUtils.CLASSPATH_URL_PREFIX + "license/license.xml");
//            InputStream is = new FileInputStream(fileLicense);
//            com.aspose.pdf.License aposeLic = new com.aspose.pdf.License();
//            aposeLic.setLicense(is);
//            Document pdfDocument = new Document(file.getInputStream());
//           	//图片宽度：800
//            //图片高度：100
//            // 分辨率 130
//           	//Quality [0-100] 最大100
//            //例： new JpegDevice(800, 1000, resolution, 90);
//            Resolution resolution = new Resolution(130);
//            JpegDevice jpegDevice = new JpegDevice(resolution);
//            for (int i=1;i<=pdfDocument.getPages().size();i++) {
//            	File imageFile = new File(imageUrl+i+".png");// 输出路径
//                FileOutputStream fileOS = new FileOutputStream(imageFile);
//                jpegDevice.process(pdfDocument.getPages().get_Item(i), fileOS);
//                fileOS.close();
//			}
//		}else if(fileType.contains("word")){
//			com.aspose.words.Document doc = new com.aspose.words.Document(file.getInputStream());
//			ImageSaveOptions iso = new ImageSaveOptions(SaveFormat.PNG);
//			iso.setTiffCompression(TiffCompression.CCITT_4);
//			iso.setPageCount(1);
//			iso.setResolution(200);
//			int count = doc.getPageCount();
//			for (int i = 0; i < count; i++)
//			{
//				iso.setPageIndex(i);
//				doc.save(imageUrl+(i+1)+".png", iso);
//			}
//		}else if(fileType.contains("excel")||fileType.contains(".sheet")){
//			File fileLicense = ResourceUtils.getFile(ResourceUtils.CLASSPATH_URL_PREFIX + "license/license.xml");
//            InputStream is = new FileInputStream(fileLicense);
//            com.aspose.cells.License aposeLic = new com.aspose.cells.License();
//            aposeLic.setLicense(is);
//			Workbook book = new Workbook(file.getInputStream());
//            //创建一个图表选项的对象
//            ImageOrPrintOptions imgOptions = new ImageOrPrintOptions();
//            imgOptions.setImageFormat(ImageFormat.getPng());
//            imgOptions.setCellAutoFit(true);
//            imgOptions.setOnePagePerSheet(true);
//            imgOptions.setDefaultFont("200");
//            int count = book.getWorksheets().getCount();
//            int k = 0;
//            for (int i = 0; i < count; i++)
//            {
//                //获取一张工作表
//                Worksheet sheet = book.getWorksheets().get(i);
//                //创建一个纸张底色渲染对象
//                SheetRender sr = new SheetRender(sheet, imgOptions);
//                for (int j = 0; j < sr.getPageCount(); j++)
//                {
//                    String imgpath = imageUrl+(k+1)+".png";
//                    sr.toImage(k, imgpath);
//                    k++;
//                }
//            }
//		}
		
	}
}